| Effect of the anterior double splint appliance treatment on skeletal class Ⅱ mandibular recession after the peak of growth and development |
| Received:November 10, 2022 Revised:February 22, 2023 Click here to download the full text |
| Citation of this paper:GAO Ying,YU Xiang-hua,YANG Li-na,CHEN Li.Effect of the anterior double splint appliance treatment on skeletal class Ⅱ mandibular recession after the peak of growth and development[J].Chinese Journal of Clinical Medicine,2023,30(3):502-508 |
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| Author Name | Affiliation | E-mail | | GAO Ying | Department of Stomatology, Minhang Dental Disease Prevention and Treatment Institute of Shanghai, Shanghai 201107, China | | | YU Xiang-hua | Department of Stomatology, Minhang Dental Disease Prevention and Treatment Institute of Shanghai, Shanghai 201107, China | | | YANG Li-na | Department of Stomatology, Minhang Dental Disease Prevention and Treatment Institute of Shanghai, Shanghai 201107, China | | | CHEN Li | Department of Orthodontic, Shanghai Stomatological Hospital, Shanghai 200001, China | Lichen_kq@fudan.edu.cn |
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| Abstract:Objective To explore the therapeutic effect of the sagittal-guided twin block (SGTB) with anterior double splint appliance on patients with skeletal class Ⅱ mandibular recession after the peak of growth and development. Methods A retrospective study was conducted on 23 patients with skeletal class Ⅱ mandibular recession after the peak of growth and development, who were treated with SGTB in Minhang Dental Disease Prevention and Treatment Institute of Shanghai. Before and after the treatment, X ray cephalometric lateral films were taken to measure parameters of soft tissue and hard tissue of maxilloface and upper airway items. Results After anterior double splint appliance treatment, MP-FH, SGn-FH, NP-FH, SNB, L1-MP and ANS-Me increased (P<0.05), while ANB, U1-LI and S-Co decreased correspondingly (P<0.01); among the soft tissue items, LLP, LLL and LL-Pos increased (P<0.01), while FCA, ULP and Si-LLPos decreased (P<0.05); the upper airway items included SPP-SPPW, U-MPW and TB-TPPW increased (P<0.01). Conclusion For these patients after the peak of growth and development, SGTB can coordinate the sagittal and vertical relationship of the maxilla and mandible, and effectively expand the sagittal width of palatopharynx and glossopharynx through advanced the mandible. |
| keywords:anterior double splint appliance mandibular recession after the peak of growth and development upper airway |
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